A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs.
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According to the heliocentric theory, the sun is the center of everything in the universe.
It’s cause by the fact that the earth is tilted 23.5 degrees
An impact which stops a moving object must do enough work to take away its kinetic energy, so extending the distance moved during the collision reduces the impact force.
H<span>igh voltage demonstrations!</span>